Page Theme
Groups by Alphabet
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ALL
Circadian rhythm is a person’s natural sleep-wake cycle over 24 hours. A circadian rhythm sleep disorder happens when a person’s natural rhythm is out of sync with his social or work demands, and he is alert or sleepy at inappropriate times. But a person with a circadian rhythm sleep disorder has sleep of a normal quality and time once he does fall asleep. Learn more about circadian rhythms and sleep disorders by joining this online group.
Enter your Question
(1500 Maximum characters)
Display my profile name when displaying the answer